Read Edit View history 硅酸 guīsuān silicic acid Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 硅酸 · guīsuān · silicic acid 2026/03/04 硅酸 guīsuān silicic acid any of a group of chemical compounds containing silicon, oxygen, and hydrogen 硅酸是一种极弱的酸，在水中溶解度很小。 noun created sense Mar 4, 2026, 02:25 AM